: dynamic_cast<Open_type_font *> (unsmob_metrics (font));
SCM_ASSERT_TYPE (otf, font, SCM_ARG1, __FUNCTION__, "Open type font");
: dynamic_cast<Open_type_font *> (unsmob_metrics (font));
SCM_ASSERT_TYPE (otf, font, SCM_ARG1, __FUNCTION__, "Open type font");